How much boost can the stock engine handle reliably w/ BNR S3?

B

Bobby

Greenie N00B Member
Hey guys currently running 20psi and wanting to turn it up. Just wondering what the safe amount of boost with stock internals is with the BNR S3? Thank you!
 
Mazda designed and built these motors to make 263 horsepower. Keep it around there and you should be good
 
Bobby said:
Hey guys currently running 20psi and wanting to turn it up. Just wondering what the safe amount of boost with stock internals is with the BNR S3? Thank you!
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The condition and health of your motor would be a big factor to consider. When I was stock block I had a 93 map and a meth map where boost targets were 21 and 22 psi.


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